3m+n=2m-n

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Solution for 3m+n=2m-n equation:


Simplifying
3m + n = 2m + -1n

Solving
3m + n = 2m + -1n

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-2m' to each side of the equation.
3m + -2m + n = 2m + -2m + -1n

Combine like terms: 3m + -2m = 1m
1m + n = 2m + -2m + -1n

Combine like terms: 2m + -2m = 0
1m + n = 0 + -1n
1m + n = -1n

Add '-1n' to each side of the equation.
1m + n + -1n = -1n + -1n

Combine like terms: n + -1n = 0
1m + 0 = -1n + -1n
1m = -1n + -1n

Combine like terms: -1n + -1n = -2n
1m = -2n

Divide each side by '1'.
m = -2n

Simplifying
m = -2n

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